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 * and open the template in the editor.
 */
package web;

import java.io.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.naming.InitialContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import loadphase.PhaseBean;
import elementos.Composite;

/**
 *
 * @author julio
 */
@WebServlet(name = "PhaseServlet", urlPatterns = {"/PhaseServlet"})
public class PhaseServlet extends HttpServlet {
    
    //@EJB
    //private PhaseBean bean;
    
    private HttpSession session;
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {        
            //read and write in that order request and responses all the time
            //read procces
            InputStream input =request.getInputStream();
            ObjectInputStream s = new ObjectInputStream(input);
            Integer number = (Integer) s.readObject();
            s.close();
            
            session = request.getSession(true);
            //if (session==null) session = request.getSession(true);
            PhaseBean bean=(PhaseBean) session.getAttribute("Bean");

            if(bean==null){
                InitialContext con= new InitialContext();
                try{
                    bean=(PhaseBean) con.lookup("java:module/PhaseBean");
                    bean.setInitialPhase(number);
                    
                }catch(Exception e){
                    System.out.println(e.getMessage());
                }
                
                session.setAttribute("Bean", bean);
            }
        
            Composite scene = (number<0?(Composite)bean.nextPhase():(Composite)bean.loadPhase(number));
            OutputStream output = response.getOutputStream();
            ObjectOutputStream s2 = new ObjectOutputStream(output);
            s2.writeObject(scene);
            s2.writeObject(session.getId());
            s2.flush();
            s2.close();
        } catch (Exception ex) {
            Logger.getLogger(PhaseServlet.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
